> [...] but did absolutely nothing for me in terms of adrenaline [...] I don't (think) I'm doing it for the adrenaline, that would have faded sometime in the l

> [...] but did absolutely nothing for me in terms of adrenaline [...] I don't (think) I'm doing it for the adrenaline, that would have faded sometime in the last 10 years. Besides, as you said, you can get that cheaper/faster by riding a bicycle in rush hour traffic or standing near a ledge. I think it's the 100% focus that does it, which sounds similar to what you describe with racing mode.